MalwareBazaar Database
You are currently viewing the MalwareBazaar entry for SHA256 a259e91f8ab724be3909f2d4c8dda9397d9bb51a853b09164f585bead32e44f9. While MalwareBazaar tries to identify whether the sample provided is malicious or not, there is no guarantee that a sample in MalwareBazaar is malicious.
Database Entry
AgentTesla
Vendor detections: 14
| SHA256 hash: | a259e91f8ab724be3909f2d4c8dda9397d9bb51a853b09164f585bead32e44f9 |
|---|---|
| SHA3-384 hash: | 6018356956b15ec509738ad156a0966e5cd3e4828a016d7f9e15ce8473ac9fc1787af2a1f967b73cc1d230972f5f18a4 |
| SHA1 hash: | c9640e168d3394aa43590eeb0180f2aafe1b9079 |
| MD5 hash: | 87d1663ce0a175e09cc30eaa90d071e2 |
| humanhash: | oxygen-moon-uranus-undress |
| File name: | rCONTRACT85378600101001010_pdf.exe |
| Download: | download sample |
| Signature | AgentTesla |
| File size: | 392'981 bytes |
| First seen: | 2023-04-10 12:17:01 UTC |
| Last seen: | Never |
| File type: |  exe |
| MIME type: | application/x-dosexec |
| imphash | 61259b55b8912888e90f516ca08dc514 (1'059 x Formbook, 741 x AgentTesla, 431 x GuLoader) |
| ssdeep | 6144:vYa6MKAoyA2Ra77MqOn7bKm/9+b2MPmLWEsF76lNpMj9neYLRX1c1vcrqOivYmt9:vYqKSA2+AbKunPBsFOe9nbLJbqOivYG9 |
| Threatray | 1'948 similar samples on MalwareBazaar |
| TLSH | T10C842335BA2CC447DCA31F32A9BD67664FE9FA3524E14A8F23056B287960763464F703 |
| TrID | 47.3% (.EXE) Win32 Executable MS Visual C++ (generic) (31206/45/13) 15.9% (.EXE) Win64 Executable (generic) (10523/12/4) 9.9% (.DLL) Win32 Dynamic Link Library (generic) (6578/25/2) 7.6% (.EXE) Win16 NE executable (generic) (5038/12/1) 6.8% (.EXE) Win32 Executable (generic) (4505/5/1) |
| File icon (PE): |  |
| dhash icon | b2a89c96a2cada72 (2'283 x Formbook, 981 x Loki, 803 x AgentTesla) |
| Reporter |  FXOLabs |
| Tags: | AgentTesla exe |
Intelligence
File Origin
# of uploads :
1
# of downloads :
790
Origin country :
BRVendor Threat Intelligence
Malware family:
n/a
ID:
1
File name:
rCONTRACT85378600101001010_pdf.exe
Verdict:
Malicious activity
Analysis date:
2023-04-10 12:18:27 UTC
Tags:
n/a
Note:
ANY.RUN is an interactive sandbox that analyzes all user actions rather than an uploaded sample
Detection:
n/a
Result
Verdict:
Malware
Maliciousness:
Behaviour
Searching for the window
Creating a file in the %temp% directory
Creating a window
Creating a process from a recently created file
Sending a custom TCP request
Using the Windows Management Instrumentation requests
Сreating synchronization primitives
DNS request
Reading critical registry keys
Setting a keyboard event handler
Creating a file in the %AppData% subdirectories
Unauthorized injection to a recently created process
Unauthorized injection to a recently created process by context flags manipulation
Stealing user critical data
Result
Malware family:
n/a
Score:
5/10
Tags:
n/a
Behaviour
MalwareBazaar
Verdict:
Malicious
Threat level:
10/10
Confidence:
100%
Tags:
comodo formbook nemesis overlay packed remcos shell32.dll
Verdict:
Malicious
Labled as:
Win/malicious_confidence_100%
Result
Verdict:
MALICIOUS
Details
Windows PE Executable
Found a Windows Portable Executable (PE) binary. Depending on context, the presence of a binary is suspicious or malicious.
Malware family:
Agent Tesla
Verdict:
Malicious
Result
Threat name:
AgentTesla
Detection:
malicious
Classification:
troj.spyw.evad
Score:
100 / 100
Signature
Detected unpacking (creates a PE file in dynamic memory)
Detected unpacking (overwrites its own PE header)
Found evasive API chain (may stop execution after reading information in the PEB, e.g. number of processors)
Initial sample is a PE file and has a suspicious name
Installs a global keyboard hook
Machine Learning detection for sample
Maps a DLL or memory area into another process
May check the online IP address of the machine
Multi AV Scanner detection for dropped file
Multi AV Scanner detection for submitted file
Queries sensitive BIOS Information (via WMI, Win32_Bios & Win32_BaseBoard, often done to detect virtual machines)
Queries sensitive network adapter information (via WMI, Win32_NetworkAdapter, often done to detect virtual machines)
Tries to harvest and steal browser information (history, passwords, etc)
Tries to harvest and steal Putty / WinSCP information (sessions, passwords, etc)
Tries to steal Mail credentials (via file / registry access)
Yara detected AgentTesla
Behaviour
Behavior Graph:
Threat name:
ByteCode-MSIL.Trojan.AgentTesla
Status:
Malicious
First seen:
2023-04-05 23:29:11 UTC
File Type:
PE (Exe)
Extracted files:
4
AV detection:
26 of 34 (76.47%)
Threat level:
5/5
Detection(s):
Suspicious file
Verdict:
malicious
Label(s):
agenttesla
Similar samples:
+ 1'938 additional samples on MalwareBazaar
Result
Malware family:
agenttesla
Score:
10/10
Tags:
family:agenttesla collection keylogger spyware stealer trojan
Behaviour
Suspicious behavior: MapViewOfSection
Suspicious use of AdjustPrivilegeToken
Suspicious use of SetWindowsHookEx
Suspicious use of WriteProcessMemory
outlook_office_path
outlook_win_path
Enumerates physical storage devices
Suspicious use of SetThreadContext
Accesses Microsoft Outlook profiles
Looks up external IP address via web service
Executes dropped EXE
Loads dropped DLL
Reads data files stored by FTP clients
Reads user/profile data of local email clients
Reads user/profile data of web browsers
AgentTesla
Unpacked files
SH256 hash:
65bb0b2cf09ae0c6ea1b2f111d7fb9c92722ddf672063a64a0802ba640fbad22
MD5 hash:
531f8be5630b2bcc8a695d997fb2e87f
SHA1 hash:
4f8bf28691d4f401e1ab1b74cd82fe1691484d4c
SH256 hash:
a259e91f8ab724be3909f2d4c8dda9397d9bb51a853b09164f585bead32e44f9
MD5 hash:
87d1663ce0a175e09cc30eaa90d071e2
SHA1 hash:
c9640e168d3394aa43590eeb0180f2aafe1b9079
Please note that we are no longer able to provide a coverage score for Virus Total.
Threat name:
Malicious File
Score:
1.00
YARA Signatures
MalwareBazaar uses YARA rules from several public and non-public repositories, such as YARAhub and Malpedia. Those are being matched against malware samples uploaded to MalwareBazaar as well as against any suspicious process dumps they may create. Please note that only results from TLP:CLEAR rules are being displayed.
| Rule name: | cobalt_strike_tmp01925d3f |
|---|---|
| Author: | The DFIR Report |
| Description: | files - file ~tmp01925d3f.exe |
| Reference: | https://thedfirreport.com |
| Rule name: | MSIL_SUSP_OBFUSC_XorStringsNet |
|---|---|
| Author: | dr4k0nia |
| Description: | Detects XorStringsNET string encryption, and other obfuscators derived from it |
| Reference: | https://github.com/dr4k0nia/yara-rules |
| Rule name: | msil_susp_obf_xorstringsnet |
|---|---|
| Author: | dr4k0nia |
| Description: | Detects XorStringsNET string encryption, and other obfuscators derived from it |
| Rule name: | pe_imphash |
|---|
| Rule name: | shellcode |
|---|---|
| Author: | nex |
| Description: | Matched shellcode byte patterns |
| Rule name: | Skystars_Malware_Imphash |
|---|---|
| Author: | Skystars LightDefender |
| Description: | imphash |
File information
The table below shows additional information about this malware sample such as delivery method and external references.
Malspam
Delivery method
Distributed via e-mail attachment
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